int auditable; /* 1 if record should be written */
int name_count;
struct audit_names names[AUDIT_NAMES];
+ struct dentry * pwd;
+ struct vfsmount * pwdmnt;
struct audit_context *previous; /* For nested syscalls */
struct audit_aux_data *aux;
if (!err && (flags & AUDIT_AT_EXIT))
err = audit_add_rule(entry, &audit_extlist);
audit_log(NULL, AUDIT_CONFIG_CHANGE,
- "auid %u added an audit rule\n", loginuid);
+ "auid=%u added an audit rule\n", loginuid);
break;
case AUDIT_DEL:
flags =((struct audit_rule *)data)->flags;
if (!err && (flags & AUDIT_AT_EXIT))
err = audit_del_rule(data, &audit_extlist);
audit_log(NULL, AUDIT_CONFIG_CHANGE,
- "auid %u removed an audit rule\n", loginuid);
+ "auid=%u removed an audit rule\n", loginuid);
break;
default:
return -EINVAL;
if (context->names[i].name)
__putname(context->names[i].name);
context->name_count = 0;
+ if (context->pwd)
+ dput(context->pwd);
+ if (context->pwdmnt)
+ mntput(context->pwdmnt);
+ context->pwd = NULL;
+ context->pwdmnt = NULL;
}
static inline void audit_free_aux(struct audit_context *context)
struct vm_area_struct *vma;
get_task_comm(name, current);
- audit_log_format(ab, " comm=%s", name);
+ audit_log_format(ab, " comm=");
+ audit_log_untrustedstring(ab, name);
if (!mm)
return;
{
int i;
struct audit_buffer *ab;
+ struct audit_aux_data *aux;
ab = audit_log_start(context, AUDIT_SYSCALL);
if (!ab)
return; /* audit_panic has been called */
- audit_log_format(ab, "syscall=%d", context->major);
+ audit_log_format(ab, "arch=%x syscall=%d",
+ context->arch, context->major);
if (context->personality != PER_LINUX)
audit_log_format(ab, " per=%lx", context->personality);
- audit_log_format(ab, " arch=%x", context->arch);
if (context->return_valid)
audit_log_format(ab, " success=%s exit=%ld",
(context->return_valid==AUDITSC_SUCCESS)?"yes":"no",
context->egid, context->sgid, context->fsgid);
audit_log_task_info(ab);
audit_log_end(ab);
- while (context->aux) {
- struct audit_aux_data *aux;
- aux = context->aux;
+ for (aux = context->aux; aux; aux = aux->next) {
ab = audit_log_start(context, aux->type);
if (!ab)
case AUDIT_AVC_PATH: {
struct audit_aux_data_path *axi = (void *)aux;
audit_log_d_path(ab, "path=", axi->dentry, axi->mnt);
- dput(axi->dentry);
- mntput(axi->mnt);
break; }
}
audit_log_end(ab);
-
- context->aux = aux->next;
- kfree(aux);
}
+ if (context->pwd && context->pwdmnt) {
+ ab = audit_log_start(context, AUDIT_CWD);
+ if (ab) {
+ audit_log_d_path(ab, "cwd=", context->pwd, context->pwdmnt);
+ audit_log_end(ab);
+ }
+ }
for (i = 0; i < context->name_count; i++) {
ab = audit_log_start(context, AUDIT_PATH);
if (!ab)
continue; /* audit_panic has been called */
+
audit_log_format(ab, "item=%d", i);
if (context->names[i].name) {
audit_log_format(ab, " name=");
audit_free_context(context);
}
-/* Compute a serial number for the audit record. Audit records are
- * written to user-space as soon as they are generated, so a complete
- * audit record may be written in several pieces. The timestamp of the
- * record and this serial number are used by the user-space tools to
- * determine which pieces belong to the same audit record. The
- * (timestamp,serial) tuple is unique for each syscall and is live from
- * syscall entry to syscall exit.
- *
- * Atomic values are only guaranteed to be 24-bit, so we count down.
- *
- * NOTE: Another possibility is to store the formatted records off the
- * audit context (for those records that have a context), and emit them
- * all at syscall exit. However, this could delay the reporting of
- * significant errors until syscall exit (or never, if the system
- * halts). */
-static inline unsigned int audit_serial(void)
-{
- static atomic_t serial = ATOMIC_INIT(0xffffff);
- unsigned int a, b;
-
- do {
- a = atomic_read(&serial);
- if (atomic_dec_and_test(&serial))
- atomic_set(&serial, 0xffffff);
- b = atomic_read(&serial);
- } while (b != a - 1);
-
- return 0xffffff - b;
-}
-
/* Fill in audit context at syscall entry. This only happens if the
* audit context was created when the task was created and the state or
* filters demand the audit context be built. If the state from the
context->names[context->name_count].name = name;
context->names[context->name_count].ino = (unsigned long)-1;
++context->name_count;
+ if (!context->pwd) {
+ read_lock(¤t->fs->lock);
+ context->pwd = dget(current->fs->pwd);
+ context->pwdmnt = mntget(current->fs->pwdmnt);
+ read_unlock(¤t->fs->lock);
+ }
+
}
/* Intercept a putname request. Called from
context->names[idx].rdev = inode->i_rdev;
}
-int audit_get_stamp(struct audit_context *ctx,
- struct timespec *t, unsigned int *serial)
+void auditsc_get_stamp(struct audit_context *ctx,
+ struct timespec *t, unsigned int *serial)
{
- if (ctx) {
- t->tv_sec = ctx->ctime.tv_sec;
- t->tv_nsec = ctx->ctime.tv_nsec;
- *serial = ctx->serial;
- ctx->auditable = 1;
- return 1;
- }
- return 0;
+ t->tv_sec = ctx->ctime.tv_sec;
+ t->tv_nsec = ctx->ctime.tv_nsec;
+ *serial = ctx->serial;
+ ctx->auditable = 1;
}
int audit_set_loginuid(struct task_struct *task, uid_t loginuid)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff